Results 71 to 80 of about 18,346 (209)

Fate of some heavy metals in soils: a review [PDF]

, 2011
This review revealed that heavy metals are naturally components of the soil orchestrated by weathering processes and that the abundance of these metals in our soil environment nowadays is due to numerous anthropogenic activities.
Frank, Uzu Ogbonnaya, Orhue, Ehi Robert
core   +2 more sources

Electromembrane Extraction for Multiclass Pesticide Assessment in Soil Matrices: Sustainable Analytical Insights

Analysis &Sensing, Volume 6, Issue 2, March 2026.
The U‐shaped electromembrane extraction with liquid chromatography‐mass spectrometry enables rapid multiclass pesticide screening in soil. The 15 min, low‐solvent workflow achieves high recoveries and robust linearity, while AGREEprep and GAPI assessments highlight a greener profile compared to literature reports, which represents a smart strategy for ...
Rafael O. Martins, Gabriela G. Souza, Anne Varenne, Fanny d’Orlyé, Livia F. Sgobbi, Pedro V. V. Romanholo, Maria E. C. Queiroz, Bruno J. G. Silva, Virginia Damin, Andréa R. Chaves   +9 more
wiley   +1 more source

Influence of Extractant and Soil Type on Molecular Characteristics of Humic Substances From Two Brazilian Soils

Journal of the Brazilian Chemical Society, 1999
In a previous study it was observed that humic substances (HS) extracted with NaOH solution and with Na4P2O7 solution presented different molecular weights, and also that the extracted HS yield by each method varied between an Oxisol and a Mollisol from ...
Dick Deborah Pinheiro, Burba Peter, Herzog Helmut   +2 more
doaj  

SOIL ORGANIC CARBON, CARBON STOCK AND THEIR RELATIONSHIPS TO PHYSICAL ATTRIBUTES UNDER FOREST SOILS IN CENTRAL AMAZONIA

Revista Árvore, 2016
The soil carbon under Amazonian forests has an important roles in global changing, making information on the soil content and depths of these stocks are considerable interest in efforts to quantify soil carbon emissions to the atmosphere.This study ...
Jean Dalmo de Oliveira Marques, Flávio Jesus Luizão, Wenceslau Geraldes Teixeira, Claudia Marie Vitel, Elizalane Moura de Araújo Marques   +4 more
doaj   +1 more source

Sugarcane response to polyhalite fertilizer in Brazilian Oxisols

Agronomy Journal, 2020
AbstractPolyhalite (PYH), (K2SO4·MgSO4·2CaSO4·2H2O), contains four nutrients of great importance to sugarcane (Saccharum spp.), but has lower water solubility than traditional K fertilizers. Two studies were conducted to determine if PYH fertilizer (11.6% K) promoted sugarcane response comparable to other K fertilizers on highly weathered, acidic ...
Paulo Sergio Pavinato, José Eduardo Corá, Aline de Camargo Santos, Wilfrand Ferney Bejarano Herrera, Kiran Pavuluri, Francis J. Pierce   +5 more
openaire   +2 more sources

Diallel analysis of elephantgrass clones for bioenergy production in a tropical environment

Crop Science, Volume 66, Issue 2, March/April 2026.
Abstract Climate change caused by fossil fuels has driven the search for bioenergy sources. Elephantgrass [Cenchrus purpureus (Schumach.) Morrone] biomass is a promising alternative for diversifying the energy matrix. One of the main steps of a genetic breeding program is the selection of parents who will form the crossing block, and the use of diallel
Tatiana de Vilela de Souza Pessoa, Érika de Fátima de dos Santos, Jailton da Costa Carneiro, Pedro Crescêncio Souza Carneiro, Kaio Olimpio das Graças Dias, Juarez Campolina Machado   +5 more
wiley   +1 more source

Charge characteristics in relation to mineralogy of selected soils from South-east Asia [PDF]

, 1996
The mineralogy and charge characteristics of 7 soils from the Philippines, Indonesia and Malaysia were studied. The soils consisted of an Entisol, 3 Alfisols, an Andisol and 2 Oxisols.
Awang, Kamis, Jusop, Shamsuddin, Mohd Hanif, Ahmad Husni, Salleh, Ruziah   +3 more
core  

Degradation and Restoration of Anthrosols in the Amazonia Under Contrasting Agricultural Practices: Evidence From the Assessment of Soil Physical Quality and Carbon and Nitrogen Stocks

Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT This study was conducted to assess the impact of different agricultural practices on the physical quality and the carbon and nitrogen stocks of anthropogenic soils used by smallholder farmers in Central Amazonia, Brazil. Undisturbed and disturbed soil samples were collected at three depths (0–0.10 m, 0.10–0.20 m, and 0.20–0.30 m), with five ...
Heitor Marcel da Silva Ribeiro, Reginaldo Barboza da Silva, Francisca Alcivania de Melo Silva, Newton Paulo de Souza Falcão, Zigomar Menezes de Souza, Guilherme Souza Florencio, Rodrigo Batista Pinto, Rafael Duarte L'Abbate, Tiago Osório Ferreira, Diogenes L. Antille   +9 more
wiley   +1 more source

Efecto del Silicio sobre la disponibilidad de fosforo en un Andept y un Oxisol

Agronomía Colombiana, 1991
El presente ensayo trató de cuantificar el efecto de la adición y época de aplicación de enmiendas silicatadas (ceniza de<br />cascarrilla de arroz y metasilicato de sodio) sobre la disponibilidad de fósforo en dos suelos altamente fijadores del ...
Moncada Jairo Orlando, Puentes Orlando, Mesa Luis Jorge   +2 more
doaj  

Decrease in carbon stocks in an oxisol due to land use and cover change in southwestern Amazon. [PDF]

, 2019
This study presents data on the influence of the land cover type on soil carbon stocks in an Oxisol in southwestern Amazon, Acre, Brazil, under three land cover types: mature forest, pasture and rubber tree plantation.
ALVES, S. de S., SALIMON, C. I., WADT, P. G. S.   +2 more
core